Organocatalytic intramolecular [4+ 2] cycloaddition between in situ generated vinylidene ortho‐quinone methides and benzofurans.
DOI Number:
10.1002/anie.201707523
Reaction Category:
Educt:
1-((2-(naphtho[2,1-b]furan-2-yl)phenyl)ethynyl)naphthalen-2-ol
Product:
(12aR,19aS)-5,5a-dihydro-12aH-benzo[f]indeno[1,2-c]naphtho[1',2':4,5]furo[3,2-b]chromene
Catalyst:
N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]thiourea
Cas No:
852913-16-7
Associated Product from Buchler GmbH:
Quinine Base
Cas No:
130-95-0